We conduct a data-based policy evaluation of the first large-scale, EU-wide excess profit tax, implemented during the 2022 European energy crisis to tax the windfall profits of inframarginal electricity producers. In particular, we evaluate the inherent trade-off of excess profit taxation: the...

Using Stochastic Frontier Analysis, this paper updates, for 123 countries, the estimates of tax capacity-defined as the maximum level of revenue a country can feasibly achieve - and tax effort - measured as the ratio of actual tax revenue to tax capacity. It also introduces two novel models that...

The objective of this research is to analyze the impact of consumer price index, exchange rate, broad money supply, and export on tax revenue in Cambodia. The short-run effects from the ARDL cointegration model suggest that inflation negatively influences tax revenue. Changes in the exchange...

Europe does not suffer from a lack of tax instruments - it suffers from too many. Over the past decade, new layers of corporate, digital, and global tax rules have been added to an already complex system, often delivering limited revenues while increasing legal uncertainty, compliance costs, and...

The taxing authority of subnational governments is limited by the geographic location of individuals and economic activity. The rise of telework decouples a worker's residence from the employer's location, creating challenges for personal income taxes, corporate income taxes, and unemployment...

In 2021, the Republic of Georgia established a Large Taxpayer Office (LTO) to strengthen tax administration and improve compliance among firms that contribute a disproportionate share of revenue. This paper draws on that quasi-experiment to estimate the causal impact of intensive oversight, with...

Purpose - This paper examines the effect of specific macroeconomic variables on tax revenue policy in Oman, as an oil-dependent economy, using annual data from 1991 to 2020. Design/methodology/approach - The autoregressive distributed lag model is used, and its outcomes were verified by numerous...

Using a method inspired by quantum principles, this study estimates the composition of various types of tax contributions expected from foreign trade operations. The estimation approach is proposed considering the superposition of expectations and disturbances-fundamental elements of quantum...

The taxing authority of subnational governments is limited by the geographic location of individuals and economic activity. The rise of telework decouples a worker's residence from the employer's location, creating challenges for personal income taxes, corporate income taxes, and unemployment...

Improving domestic tax revenue mobilization through increased tax compliance is imperative when policy reform options are limited. For this purpose, determining tax compliance gaps is important, but it requires detailed information. In South Africa, value-added tax is the second-largest...

This study examines the impact of transfer pricing regulations on petroleum tax revenue using the enforcement role of the Ghana Revenue Authority (GRA). Utilizing data from Ghanaian firms spanning 2002 to 2023 from reliable institutional sources including the GRA, PIAC, World Bank, and the U.S....

Mobilising domestic revenue in lower-income countries has become more urgent in the face of rising debts, tighter global financial conditions, climate pressures and weakening aid inflows. In this context, the 2025 Sevilla Commitment, in the context of the United Nations Sustainable Development...

This note presents the results of the analysis of Value Added Tax (VAT) and Corporate Income Tax (CIT) compliance and policy gap estimates in Indonesia between 2016 and 2021. The study's objective is to quantify the magnitude of the tax gaps and to identify drivers behind the low efficiency of...

Tax revenue generation is crucial for economic management and development in both developed and developing countries, as it supports public services, infrastructure, and social programs, thus fostering sustainable development and economic stability. This study aims to investigate the effect of...

For the better part of the last decade, the global minimum tax, or Pillar Two, has dominated international tax policy discussions. Developing out of the Base Erosion and Profit Shifting (BEPS) Project at the Organisation for Economic Co-operation and Development (OECD), Pillar Two's main...

Civil wars often erode state sovereignty, as institutions are replaced or co-opted by armed groups that establish informal governance structures. Among these, rebel taxation emerges as a key tool for financing wartime activities and administering territories. We explore whether rebel taxation...

We provide new evidence on countries' tax effort - the gap between collected and predicted tax revenue - based on a self-constructed panel of 114 countries, covering the period from 1995 to 2020. We apply the stochastic frontier model of Kumbhakar et al. (2014. Technical efficiency in competing...

This paper estimates the tax capacity and tax effort of the nine provinces in South Africa, allowing for the assessment of the revenue-mobilizing ability of provinces and overall tax system efficiency. Provincial tax capacity and effort is estimated via a stochastic frontier approach using the...

Can the exposure to civil war make people more motivated to pay taxes and (re)build the state? Our project examines this question in the context of Africa, a region where civil wars have frequently undermined state capacity. We move from the popular Tillian view of war-making as state-making to...

Even now, 35 years after German unification, the economic power and fiscal capacity of the eastern German federal states remain below average. In Germany's system of fiscal federalism, this leads to substantial financial transfers, a fact that repeatedly triggers political debate. Thereby, the...

This paper investigates the drivers of Value Added Tax (VAT) compliance among small and medium-scale enterprises (SMEs) in Ghana using a multi-dimensional approach. From a sample size of 520 SMEs, data was collected using structured questionnaires, while the dataset was analysed using Partial...

The main aim of this paper is to empirically assess the impact of education and tax revenue onfostering new business creation in the OECD countries. To this end, we employ fixed effects and random effects models using panel data from 2006 to 2022, incorporating alternative conditions. Results...

The Islamic Republic of Mauritania will soon commence gas production through the Grand Tortue Ahmeyim, a major natural gas development situated offshore between Mauritania and Senegal. This mission assessed the current situation of the management of the hydrocarbon tax revenues and provided...